Photo-biotechnology as a tool to improve agronomic traits in crops

Mayank Anand Gururani, Markkandan Ganesan, Pill Soon Song

Research output: Contribution to journalReview articlepeer-review

30 Citations (Scopus)


Phytochromes are photosensory phosphoproteins with crucial roles in plant developmental responses to light. Functional studies of individual phytochromes have revealed their distinct roles in the plant's life cycle. Given the importance of phytochromes in key plant developmental processes, genetically manipulating phytochrome expression offers a promising approach to crop improvement. Photo-biotechnology refers to the transgenic expression of phytochrome transgenes or variants of such transgenes. Several studies have indicated that crop cultivars can be improved by modulating the expression of phytochrome genes. The improved traits include enhanced yield, improved grass quality, shade-tolerance, and stress resistance. In this review, we discuss the transgenic expression of phytochrome A and its hyperactive mutant (Ser599Ala-PhyA) in selected crops, such as Zoysia japonica (Japanese lawn grass), Agrostis stolonifera (creeping bentgrass), Oryza sativa (rice), Solanum tuberosum (potato), and Ipomea batatas (sweet potato). The transgenic expression of PhyA and its mutant in various plant species imparts biotechnologically useful traits. Here, we highlight recent advances in the field of photo-biotechnology and review the results of studies in which phytochromes or variants of phytochromes were transgenically expressed in various plant species. We conclude that photo-biotechnology offers an excellent platform for developing crops with improved properties.

Original languageEnglish
Pages (from-to)53-63
Number of pages11
JournalBiotechnology Advances
Issue number1
Publication statusPublished - Jan 1 2015
Externally publishedYes


  • Gene expression
  • Morphogenesis
  • Mutant
  • Phytochromes
  • R/FR light
  • Shade avoidance response
  • Zoysiagrass

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology


Dive into the research topics of 'Photo-biotechnology as a tool to improve agronomic traits in crops'. Together they form a unique fingerprint.

Cite this